{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1FA11-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1FA11-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1FA11-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1FA11-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1FA11-ZX95, 1 NO + 1 NC, screw terminals, snap-on mounting for size S00, 10 A maximum, IP20 front.","salesMarkdown":"## Phased Out — Successor Identified The Siemens SIRIUS 3RH1911-1FA11-ZX95 is a phased-out product. The manufacturer lists the successor as the SIRIUS 3RH2 series. For new designs or BOM replacements, the 3RH2 is the direct drop-in intended by the factory. This is an auxiliary switch block from the Siemens SIRIUS family, designed for use with contactor relays and power contactors of size S00. It snaps onto the contactor without tools — no additional hardware needed. The block provides one normally open and one normally closed contact, wired via screw-type terminals. It accepts solid or stranded conductors: 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²) with core-end processing. Rated for a maximum of 10 A across the auxiliary contacts. The actual current-carrying capacity depends on the voltage: at 24 V it carries 6 A, at 230 V it carries 6 A, and at 400 V it drops to 3 A. For DC switching, the ratings are lower — 10 A at 24 V DC, 4.7 A at 60 V DC, and 0.5 A at 440 V DC. The AC-15 rating at 690 V is 1 A — this is the switching capacity under inductive load conditions typical for contactor coils and solenoid valves. The surge voltage resistance is 6 kV, and the insulation voltage at pollution degree 3 is 690 V. Mechanical service life is 10 million switching cycles typical. Snap-on mounting onto the contactor — no DIN rail required for the block itself. The dimensions are compact: 36.5 mm wide, 37.5 mm high, and 41.5 mm deep. The part carries the note \"with 3RH1\" — this indicates compatibility with the 3RH1 contactor relay series specifically, though it also fits S00 power contactors.","metaTitle":"Siemens 3RH1911-1FA11-ZX95 Auxiliary Switch Block, 10 A, S00","metaDescription":"Siemens SIRIUS 3RH1911-1FA11-ZX95 auxiliary switch block, 1 NO + 1 NC, 10 A max, snap-on for S00 contactors. Phased-out; successor 3RH2 available. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Note":"with 3RH1","Depth":"41.5 mm","Width":"36.5 mm","Height":"37.5 mm","Maximum":"10 A","at 24 V":"6 A","at 60 V":"2 A","at 110 V":"1 A","at 125 V":"6 A","at 220 V":"0.3 A","at 230 V":"6 A","at 250 V":"6 A","at 400 V":"3 A","Mounting type":"snap-on mounting","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Product brand name":"SIRIUS","Contact reliability":"one incorrect switching operation of 100 million switching operations (17 V, 5 mA)","Suitability for use":"Contactor relay and power contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 440 V rated value":"0.5 A","at 600 V rated value":"0.26 A","Instantaneous Contact":"1","With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at AC-15 at 690 V rated value":"1 A","Protection class IP on the front":"IP20","Surge voltage resistance rated value":"6 kV","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Mechanical service life (switching cycles) typical":"10 000 000","Insulation voltage with degree of pollution 3 rated value":"690 V","Type of electrical connection for auxiliary and control current circuit":"screw-type terminals"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=236421&mlfb=3RH1911-1FA11-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1FA11-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What does the note \"with 3RH1\" mean?","answer":"It means this auxiliary switch block is specifically designed for use with the 3RH1 contactor relay series, though it also fits S00 power contactors."},{"question":"Where can I buy 3RH1911-1FA11-ZX95?","answer":"We source this phased-out part to order against an RFQ through independent supply channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1FA11-ZX95","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RH1911-1FA11-ZX95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}